Company:

Sant Longowal Institute of Engineering & Technology

Products:

Marc

Industries:

AerospaceAutomotiveMachineryRailShipbuilding

Overview:

Welding is a common practice in the automotive,
aerospace, railways, ship building, and machinery
industries. It allows for the joining of components
by subjecting them to intense localized heat
which melts and coalesces the material in the
welded region, forming a permanent joint. Multiple process parameters influence the effectiveness
of the welding, which include energy source, shape and
size of the melt zone, heat affected zone, and speed.
Understanding and improving this challenging process
through physical iteration can be time consuming and
expensive. MSC’s Marc, a nonlinear finite element
analysis tool, can provide the required insights needed
to solve these parameters in a cost-effective manner.

Results Validation:

The model demonstrated the effects
of thermal contact at the joint interface
during GTAW welding of the dissimilar
materials, and the influence of transverse
offsetting of the arc away from the weld
line. “We found Marc to be very good
in simulating the complex physics of the
welding problems. Matching results with
experimental data demonstrated that this
approach can be used to significant costs
by reducing material waste and improving
life of the welded parts,” says Singh.

Benefits:

Easily try alternative
approaches without
having to invest in physical
experimentation

Gain greater insight into
temperature gradients with
simulation, which are harder
to measure in physical tests